Braun, M. P., Braun, N., Franz, D., Groß, B., Dreyer, W., Laucht, S., Kragten, S., Pârâu, L. G., Koch, E., Stiels, D., Schidelko, K., Nekum, S., Walter, C., Romero, J., Kemper, A., Hubatsch, M., Krause, T., Bruslund, S., Bruslund, N., … Wink, M. (2018). Effects of cold winters and roost site stability on population development of non-native Asian ring-necked parakeets (Alexandrinus manillensis) in temperate Central Europe – Results of a 16-year census. European Journal of Ecology, 4(2), 49-55. https://doi.org/10.2478/eje-2018-0010